Add new build command avd_patch

scripts/avd_patch.sh

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+#####################################################################
+#   AVD MagiskInit Setup
+#####################################################################
+#
+# Support emulator ABI: x86_64 and arm64
+# Support API level: 23 - 31 (21 and 22 images do not have SELinux)
+#
+# With an emulator booted and accessible via ADB, usage:
+# ./build.py avd_patch path/to/booted/avd-image/ramdisk.img
+#
+# The purpose of this script is to patch AVD ramdisk.img and do a
+# full integration test of magiskinit under several circumstances.
+# After patching ramdisk.img, close the emulator, then select
+# "Cold Boot Now" in AVD Manager to force a full reboot.
+#
+#####################################################################
+# AVD Init Configurations:
+#
+# rootfs w/o early mount: API 23 - 25
+# rootfs with early mount: API 26 - 27
+# Legacy system-as-root: API 28
+# 2 stage init: API 29 - 31
+#####################################################################
+
+if [ ! -f /system/build.prop ]; then
+  # Running on PC
+  echo 'Please run `./build.py avd_patch` instead of directly executing the script!'
+  exit 1
+fi
+
+cd /data/local/tmp
+chmod 755 busybox
+
+if [ -z "$FIRST_STAGE" ]; then
+  export FIRST_STAGE=1
+  export ASH_STANDALONE=1
+  # Re-exec script with busybox
+  exec ./busybox sh $0
+fi
+
+# Extract files from APK
+unzip -oj app-debug.apk 'assets/util_functions.sh'
+. ./util_functions.sh
+
+api_level_arch_detect
+
+unzip -oj app-debug.apk "lib/$ABI/*" "lib/$ABI32/libmagisk32.so" -x "lib/$ABI/busybox.so"
+for file in lib*.so; do
+  chmod 755 $file
+  mv "$file" "${file:3:${#file}-6}"
+done
+
+gzip -d ramdisk.cpio.gz
+cp ramdisk.cpio ramdisk.cpio.orig
+
+touch config
+
+# For API 28, we also patch advancedFeatures.ini to disable SAR
+# Manually override skip_initramfs by setting RECOVERYMODE=true
+[ $API = "28" ] && echo 'RECOVERYMODE=true' >> config
+
+./magiskboot compress=xz magisk32 magisk32.xz
+./magiskboot compress=xz magisk64 magisk64.xz
+
+export KEEPVERITY=false
+export KEEPFORCEENCRYPT=true
+
+./magiskboot cpio ramdisk.cpio \
+"add 0750 init magiskinit" \
+"mkdir 0750 overlay.d" \
+"mkdir 0750 overlay.d/sbin" \
+"add 0644 overlay.d/sbin/magisk32.xz magisk32.xz" \
+"add 0644 overlay.d/sbin/magisk64.xz magisk64.xz" \
+"patch" \
+"backup ramdisk.cpio.orig" \
+"mkdir 000 .backup" \
+"add 000 .backup/.magisk config"
+
+rm -f ramdisk.cpio.orig config magisk*.xz
+gzip -9 ramdisk.cpio